Daemon thread in Java is a thread that runs in background to perform some tasks for the program as long as the program is running. Even if daemon threads are running that doesn’t prevent JVM from shutting down. Features of daemon thread in Java The Java Virtual Machine exits when…
Once you have installed Hadoop on your system and initial verification is done you would be looking to write your first MapReduce program. Before digging deeper into the intricacies of MapReduce programming first step is the word count MapReduce program in Hadoop which is also known as the “Hello World”…
This post shows how to install Orcale JDK using apt-get or by downloading from the Oracle site on Ubuntu. It also shows how to install OpenJDK. Installing Oracle JDK using apt-get For installing Java in Ubuntu first you need to add Oracle’s PPA (Personal Package Archive) so that Ubuntu knows…
In this post we’ll see how to install Hadoop in Pseudo-distributed mode (single node cluster). With the steps given here for Hadoop installation you will have Hadoop common, HDFS, MapReduce and YARN installed. Hadoop release used for installation is Hadoop 2.9.0 and it is installed on Ubuntu 16.04. Modes in…
UEFI (Unified Extensible Firmware Interface) is a firmware, just like BIOS, that starts when you switch on your PC before booting the Operating System. UEFI is getting traction now and recent systems come with UEFI. It is developed as a replacement to traditional BIOS and provides support for – Using…
This post will tell you how to create bootable USB drive for installing Ubuntu using Rufus tool. In this post the bootable USB stick is created on Windows OS. Why do you need bootable USB Drive You will need a bootable USB stick to – Install or upgrade Ubuntu. Boot…
This post shows how to install Ubuntu along with Windows for a dual boot Ubuntu-Windows system. Here assumption is that you already have a Windows system and you want to install Ubuntu too on the same machine for dual boot. For this post Ubuntu 16.04.3 is installed on Windows 10.…